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If Statement with QTime

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  • JonBJ JonB

    @VJ01
    Since Final_Day_time is always less than Final_Night_time your if(Final > Final_Night_time && Final < Final_Day_time) ("NIGHT TIME") will always be false. You probably want some 24 hour "wrap around".

    V Offline
    V Offline
    VJ01
    wrote on last edited by VJ01
    #4

    @JonB

    Hi Thank you for the reply honestly instead of two if ststements i just did one with an else and that seemed to work. i was making it more complicated then it should have been haha

    if(Final <Final_Night_time && Final > Final_Day_time){
            qDebug() << "DAY TIME";
     }else{
           qDebug() << "NIGHT TIME";
    }
    

    Thank you

    Kent-DorfmanK 1 Reply Last reply
    1
    • V VJ01 has marked this topic as solved on
    • V VJ01

      @JonB

      Hi Thank you for the reply honestly instead of two if ststements i just did one with an else and that seemed to work. i was making it more complicated then it should have been haha

      if(Final <Final_Night_time && Final > Final_Day_time){
              qDebug() << "DAY TIME";
       }else{
             qDebug() << "NIGHT TIME";
      }
      

      Thank you

      Kent-DorfmanK Offline
      Kent-DorfmanK Offline
      Kent-Dorfman
      wrote on last edited by
      #5

      @VJ01 said in If Statement with QTime:

      @JonB

      Hi Thank you for the reply honestly instead of two if ststements i just did one with an else and that seemed to work. i was making it more complicated then it should have been haha

      if(Final <Final_Night_time && Final > Final_Day_time){
              qDebug() << "DAY TIME";
       }else{
             qDebug() << "NIGHT TIME";
      }
      

      Thank you

      or in a more sophisticated manner

      qdebug() << (((Final < Final_Night_time) && (Final > Final_Day_time)) ? "DAY" : "NIGHT");
      // proper parenthesis use and ternary if() clause
      

      The dystopian literature that served as a warning in my youth has become an instruction manual in my elder years.

      JonBJ 1 Reply Last reply
      0
      • Kent-DorfmanK Kent-Dorfman

        @VJ01 said in If Statement with QTime:

        @JonB

        Hi Thank you for the reply honestly instead of two if ststements i just did one with an else and that seemed to work. i was making it more complicated then it should have been haha

        if(Final <Final_Night_time && Final > Final_Day_time){
                qDebug() << "DAY TIME";
         }else{
               qDebug() << "NIGHT TIME";
        }
        

        Thank you

        or in a more sophisticated manner

        qdebug() << (((Final < Final_Night_time) && (Final > Final_Day_time)) ? "DAY" : "NIGHT");
        // proper parenthesis use and ternary if() clause
        
        JonBJ Offline
        JonBJ Offline
        JonB
        wrote on last edited by
        #6

        @Kent-Dorfman You really like your parentheses, don't you? :)

        jsulmJ 1 Reply Last reply
        0
        • JonBJ JonB

          @Kent-Dorfman You really like your parentheses, don't you? :)

          jsulmJ Offline
          jsulmJ Offline
          jsulm
          Lifetime Qt Champion
          wrote on last edited by
          #7

          @JonB Did you ever see Lisp code? :-)

          https://forum.qt.io/topic/113070/qt-code-of-conduct

          JonBJ 1 Reply Last reply
          0
          • jsulmJ jsulm

            @JonB Did you ever see Lisp code? :-)

            JonBJ Offline
            JonBJ Offline
            JonB
            wrote on last edited by
            #8

            @jsulm They are compulsory there, I (mostly) only put in the mandatory ones in C++ and omit the rest.

            1 Reply Last reply
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            • Kent-DorfmanK Offline
              Kent-DorfmanK Offline
              Kent-Dorfman
              wrote on last edited by Kent-Dorfman
              #9

              You parenthesis free folks wouldn't like a MISRA/AUTOSAR audit. LOL!

              https://www.autosar.org/fileadmin/standards/adaptive/18-03/AUTOSAR_RS_CPP14Guidelines.pdf

              If/else clauses really stress my OCD when they represent binary code paths...and worse when there are more than three of them...It's like Dude! use a switch/case or a map of function pointers. PLLLEEEEAAASSSEEE!!!

              The dystopian literature that served as a warning in my youth has become an instruction manual in my elder years.

              JonBJ 1 Reply Last reply
              0
              • Kent-DorfmanK Kent-Dorfman

                You parenthesis free folks wouldn't like a MISRA/AUTOSAR audit. LOL!

                https://www.autosar.org/fileadmin/standards/adaptive/18-03/AUTOSAR_RS_CPP14Guidelines.pdf

                If/else clauses really stress my OCD when they represent binary code paths...and worse when there are more than three of them...It's like Dude! use a switch/case or a map of function pointers. PLLLEEEEAAASSSEEE!!!

                JonBJ Offline
                JonBJ Offline
                JonB
                wrote on last edited by JonB
                #10

                @Kent-Dorfman
                That's nearly 500 pages of rules to observer/remember! Very worthy, I can see it being advisable in critical stuff, thankfully I have not had to adhere. TBH if you need to adhere to this many rules it does make me wonder whether you need a different language which enforces more of this stuff?

                Kent-DorfmanK jsulmJ 2 Replies Last reply
                0
                • JonBJ JonB

                  @Kent-Dorfman
                  That's nearly 500 pages of rules to observer/remember! Very worthy, I can see it being advisable in critical stuff, thankfully I have not had to adhere. TBH if you need to adhere to this many rules it does make me wonder whether you need a different language which enforces more of this stuff?

                  Kent-DorfmanK Offline
                  Kent-DorfmanK Offline
                  Kent-Dorfman
                  wrote on last edited by
                  #11

                  @JonB Generally very few institutions take it in its entirety, but at the beginning of a project decide what rules to enforce, which to ignore, and a policy for warning suppression (be prepared to defend why you ignored rule XXX in code review)

                  It's primary domain has been in the automobile automation industry, which as you can guess, needs to be pretty safety critical...but it's finding its way into other industries as well. In space systems we use it as a base, obviously.

                  Any virtually no one tries to adhere without a code scanner program to check for violations.

                  The dystopian literature that served as a warning in my youth has become an instruction manual in my elder years.

                  1 Reply Last reply
                  2
                  • JonBJ JonB

                    @Kent-Dorfman
                    That's nearly 500 pages of rules to observer/remember! Very worthy, I can see it being advisable in critical stuff, thankfully I have not had to adhere. TBH if you need to adhere to this many rules it does make me wonder whether you need a different language which enforces more of this stuff?

                    jsulmJ Offline
                    jsulmJ Offline
                    jsulm
                    Lifetime Qt Champion
                    wrote on last edited by jsulm
                    #12

                    @JonB said in If Statement with QTime:

                    it does make me wonder whether you need a different language which enforces more of this stuff

                    Indeed. Instead of reading these 500 pages and try to remember later all these restrictions/rules it would be better to use a programming language which reduces the need to remember such rules. Do you remember the "Port Qt to Rust" thread? :-)

                    https://forum.qt.io/topic/113070/qt-code-of-conduct

                    JonBJ 1 Reply Last reply
                    0
                    • jsulmJ jsulm

                      @JonB said in If Statement with QTime:

                      it does make me wonder whether you need a different language which enforces more of this stuff

                      Indeed. Instead of reading these 500 pages and try to remember later all these restrictions/rules it would be better to use a programming language which reduces the need to remember such rules. Do you remember the "Port Qt to Rust" thread? :-)

                      JonBJ Offline
                      JonBJ Offline
                      JonB
                      wrote on last edited by
                      #13

                      @jsulm said in If Statement with QTime:

                      Do you remember the "Port Qt to Rust" thread? :-)

                      That was what I had in mind.... Maybe that would enforce half the C++ rules, without needing to impose an equal number of new ones for Rust?

                      1 Reply Last reply
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